CN1620819A - Improved variable length decoder - Google Patents
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- CN1620819A CN1620819A CNA028205502A CN02820550A CN1620819A CN 1620819 A CN1620819 A CN 1620819A CN A028205502 A CNA028205502 A CN A028205502A CN 02820550 A CN02820550 A CN 02820550A CN 1620819 A CN1620819 A CN 1620819A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 54
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
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- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
| Content | |
0 | Sign ... if input equals " block end " variable length marks (EOB), LSB is set, if input equals " escape code " variable length marks (ESC), | |
1 | LVL-energy level data multiply by 2. | |
2 | The LEN-run length adds 1. | |
3 | The length of input variable length marks. |
Generation trough 12345 function types |
Const????????????y???????y???????y???????y y |
Alu??????????????y???????y???????y???????y y |
Dmem?????????????????????????????????????y y |
Shifer????????y???????y |
Dspalu????????????????y???????????y |
Dspmul?????????????y???????y |
Branch??????????????????y???????y y |
Falu???????y???????????????y |
Ifmul?????????y????y |
Fcomp?????????????????????y |
Ftough?????????????y |
Generation trough | |||||
The | 1 | 2 | 3 | 4 | ?5 |
0 | 2 | 2 shift units | 2alu | 2const |
??1 | 2 | 2 shift units | ??2ifmul | ??2dmem | |
??2 | ??1falu | 1 shift unit | ??2alu | ??3alu | ??2alu |
??3 | 2 shift units | ??1dmem | ??1dmem | ||
??4 | ??2alu | ??2ifmul | ??2alu | ??1dmem | |
??5 | ??2alu | ??2alu | ??2alu | ??1dmem | |
??6 | 2 shift units | ??Branch | ??Branch | ??3alu | ??1alu |
??7 | ??3dspalu | 2 shift units | ??2alu | ??1alu | ??2dmem |
??8 | ??2alu | ??1alu | ??1alu | ??1alu | |
??9 | 1 | 1 shift unit | ??1alu | ??3alu | ??3dmem |
??0 | Repeat |
Claims (21)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0124882.2 | 2001-10-17 | ||
GBGB0124882.2A GB0124882D0 (en) | 2001-10-17 | 2001-10-17 | Improved variable length decoder |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1620819A true CN1620819A (en) | 2005-05-25 |
CN1312938C CN1312938C (en) | 2007-04-25 |
Family
ID=9923987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028205502A Expired - Fee Related CN1312938C (en) | 2001-10-17 | 2002-09-19 | Improved variable length decoder |
Country Status (7)
Country | Link |
---|---|
US (1) | US6842124B2 (en) |
EP (1) | EP1440585A2 (en) |
JP (1) | JP4139330B2 (en) |
KR (1) | KR100924907B1 (en) |
CN (1) | CN1312938C (en) |
GB (1) | GB0124882D0 (en) |
WO (1) | WO2003034746A2 (en) |
Cited By (10)
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CN100403802C (en) * | 2006-04-30 | 2008-07-16 | 西安交通大学 | Stroke decoding and counter-scanning realization method based on register group |
CN1937768B (en) * | 2005-09-20 | 2010-04-14 | 联发科技股份有限公司 | Data processing methods and systems |
CN101686398B (en) * | 2008-09-23 | 2012-02-01 | 联发科技股份有限公司 | Method for transcoding a first codeword to a second codeword |
CN102547263A (en) * | 2010-12-27 | 2012-07-04 | 联芯科技有限公司 | Inverse discrete cosine transform lookup fast algorithm with variable complexity |
CN101243441B (en) * | 2005-06-21 | 2012-07-18 | 国际字符股份有限公司 | Method and apparatus for processing character streams |
CN103262534A (en) * | 2010-10-14 | 2013-08-21 | 汤姆逊许可公司 | Method and apparatus for improved entropy encoding and decoding |
CN108605145A (en) * | 2015-12-07 | 2018-09-28 | 谷歌有限责任公司 | Mixed boolean-token ANS coefficient codes |
CN110515658A (en) * | 2014-07-30 | 2019-11-29 | 莫维迪厄斯有限公司 | Method and apparatus for managing variable length instruction |
US11579872B2 (en) | 2013-08-08 | 2023-02-14 | Movidius Limited | Variable-length instruction buffer management |
US11768689B2 (en) | 2013-08-08 | 2023-09-26 | Movidius Limited | Apparatus, systems, and methods for low power computational imaging |
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US8913667B2 (en) * | 1999-11-09 | 2014-12-16 | Broadcom Corporation | Video decoding system having a programmable variable-length decoder |
GB0124882D0 (en) * | 2001-10-17 | 2001-12-05 | Koninkl Philips Electronics Nv | Improved variable length decoder |
US7193541B2 (en) * | 2001-12-04 | 2007-03-20 | Sun Microsystems, Inc. | Representation of sign in encoding scheme |
US7096245B2 (en) * | 2002-04-01 | 2006-08-22 | Broadcom Corporation | Inverse discrete cosine transform supporting multiple decoding processes |
US8284844B2 (en) * | 2002-04-01 | 2012-10-09 | Broadcom Corporation | Video decoding system supporting multiple standards |
US7920624B2 (en) * | 2002-04-01 | 2011-04-05 | Broadcom Corporation | Inverse quantizer supporting multiple decoding processes |
JP4487479B2 (en) * | 2002-11-12 | 2010-06-23 | 日本電気株式会社 | SIMD instruction sequence generation method and apparatus, and SIMD instruction sequence generation program |
US6903669B1 (en) * | 2003-10-03 | 2005-06-07 | Cirrus Logic, Inc. | Systems and methods for decoding compressed data |
WO2005114847A1 (en) * | 2004-05-20 | 2005-12-01 | Adams Platform Pty Ltd | System and method for encoding and decoding video |
US7573406B2 (en) * | 2004-05-21 | 2009-08-11 | Broadcom Corporation | System and method for decoding context adaptive variable length coding |
US20050275570A1 (en) * | 2004-06-10 | 2005-12-15 | Wang Wen-Shan Vincent | Parallel leading bit detection for Exp-Golomb decoding |
US7983342B2 (en) * | 2004-07-29 | 2011-07-19 | Stmicroelectronics Pvt. Ltd. | Macro-block level parallel video decoder |
JP4271134B2 (en) * | 2004-12-10 | 2009-06-03 | 株式会社東芝 | Variable length coding decoder and decoding method |
US7792385B2 (en) * | 2005-01-25 | 2010-09-07 | Globalfoundries Inc. | Scratch pad for storing intermediate loop filter data |
US8576924B2 (en) * | 2005-01-25 | 2013-11-05 | Advanced Micro Devices, Inc. | Piecewise processing of overlap smoothing and in-loop deblocking |
US20060200481A1 (en) * | 2005-03-04 | 2006-09-07 | Khalid Goyan | Method and system for data optimization and protection in DSP firmware |
US7594098B2 (en) * | 2005-07-01 | 2009-09-22 | Stmicroelectronics, Sa | Processes and devices for compression and decompression of executable code by a microprocessor with RISC architecture and related system |
US8364734B2 (en) * | 2005-09-15 | 2013-01-29 | International Business Machines Corporation | Converting from decimal floating point into scaled binary coded decimal |
US7698352B2 (en) * | 2005-09-15 | 2010-04-13 | International Business Machines Corporation | System and method for converting from scaled binary coded decimal into decimal floating point |
US7333037B2 (en) * | 2006-02-14 | 2008-02-19 | Broadcom Corporation | Method and system for improved lookup table (LUT) mechanism for Huffman decoding |
US20070283132A1 (en) * | 2006-04-06 | 2007-12-06 | Nokia Corporation | End-of-block markers spanning multiple blocks for use in video coding |
US8880571B2 (en) * | 2006-05-05 | 2014-11-04 | Microsoft Corporation | High dynamic range data format conversions for digital media |
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US5604499A (en) * | 1993-12-28 | 1997-02-18 | Matsushita Electric Industrial Co., Ltd. | Variable-length decoding apparatus |
FR2722041B1 (en) * | 1994-06-30 | 1998-01-02 | Samsung Electronics Co Ltd | HUFFMAN DECODER |
KR0154011B1 (en) * | 1995-03-16 | 1998-11-16 | 배순훈 | Variable length decoder |
JP3453452B2 (en) * | 1995-05-19 | 2003-10-06 | キヤノン株式会社 | Decryption device |
US5841380A (en) * | 1996-03-29 | 1998-11-24 | Matsushita Electric Corporation Of America | Variable length decoder and method for decoding two codes per clock cycle |
US6101221A (en) * | 1997-07-31 | 2000-08-08 | Lsi Logic Corporation | Video bitstream symbol extractor for use in decoding MPEG compliant video bitstreams meeting 2-frame and letterboxing requirements |
US6122316A (en) * | 1997-07-31 | 2000-09-19 | Lsi Logic Corporation | MPEG decoding system meeting 2-frame store and letterboxing requirements |
US6008745A (en) * | 1998-02-17 | 1999-12-28 | Sun Microsystems, Inc. | Variable length decoding using lookup tables |
US6215424B1 (en) * | 1998-12-16 | 2001-04-10 | Thomson Licensing S.A. | System for variable length codeword processing suitable for video and other applications |
US6707865B2 (en) * | 2001-07-16 | 2004-03-16 | Qualcomm Incorporated | Digital voltage gain amplifier for zero IF architecture |
GB0124882D0 (en) * | 2001-10-17 | 2001-12-05 | Koninkl Philips Electronics Nv | Improved variable length decoder |
-
2001
- 2001-10-17 GB GBGB0124882.2A patent/GB0124882D0/en not_active Ceased
-
2002
- 2002-09-18 US US10/246,169 patent/US6842124B2/en not_active Expired - Lifetime
- 2002-09-19 EP EP02801437A patent/EP1440585A2/en not_active Withdrawn
- 2002-09-19 JP JP2003537331A patent/JP4139330B2/en not_active Expired - Fee Related
- 2002-09-19 KR KR1020047005610A patent/KR100924907B1/en not_active IP Right Cessation
- 2002-09-19 CN CNB028205502A patent/CN1312938C/en not_active Expired - Fee Related
- 2002-09-19 WO PCT/IB2002/003865 patent/WO2003034746A2/en active Application Filing
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CN1937768B (en) * | 2005-09-20 | 2010-04-14 | 联发科技股份有限公司 | Data processing methods and systems |
CN100403802C (en) * | 2006-04-30 | 2008-07-16 | 西安交通大学 | Stroke decoding and counter-scanning realization method based on register group |
CN101686398B (en) * | 2008-09-23 | 2012-02-01 | 联发科技股份有限公司 | Method for transcoding a first codeword to a second codeword |
CN103262534B (en) * | 2010-10-14 | 2018-05-22 | 汤姆逊许可公司 | Improve entropy coding and decoded method and device |
CN103262534A (en) * | 2010-10-14 | 2013-08-21 | 汤姆逊许可公司 | Method and apparatus for improved entropy encoding and decoding |
US9693056B2 (en) | 2010-10-14 | 2017-06-27 | Thomson Licensing | Method and apparatus for improved entropy encoding and decoding |
US9832486B2 (en) | 2010-10-14 | 2017-11-28 | Thomson Licensing | Method and apparatus for improved entropy encoding and decoding |
US10097859B2 (en) | 2010-10-14 | 2018-10-09 | Thomson Licensing | Methods and apparatus for improved entropy encoding and decoding |
US10694211B2 (en) | 2010-10-14 | 2020-06-23 | Interdigital Vc Holdings, Inc. | Methods and apparatus for improved entropy encoding and decoding |
US11218732B2 (en) | 2010-10-14 | 2022-01-04 | Interdigital Vc Holdings, Inc. | Methods and apparatus for improved entropy encoding and decoding |
US11677983B2 (en) | 2010-10-14 | 2023-06-13 | Interdigital Vc Holdings, Inc. | Methods and apparatus for improved entropy encoding and decoding |
CN102547263A (en) * | 2010-12-27 | 2012-07-04 | 联芯科技有限公司 | Inverse discrete cosine transform lookup fast algorithm with variable complexity |
US11579872B2 (en) | 2013-08-08 | 2023-02-14 | Movidius Limited | Variable-length instruction buffer management |
US11768689B2 (en) | 2013-08-08 | 2023-09-26 | Movidius Limited | Apparatus, systems, and methods for low power computational imaging |
CN110515658A (en) * | 2014-07-30 | 2019-11-29 | 莫维迪厄斯有限公司 | Method and apparatus for managing variable length instruction |
CN108605145A (en) * | 2015-12-07 | 2018-09-28 | 谷歌有限责任公司 | Mixed boolean-token ANS coefficient codes |
Also Published As
Publication number | Publication date |
---|---|
CN1312938C (en) | 2007-04-25 |
WO2003034746A2 (en) | 2003-04-24 |
KR20040045842A (en) | 2004-06-02 |
JP4139330B2 (en) | 2008-08-27 |
GB0124882D0 (en) | 2001-12-05 |
WO2003034746A3 (en) | 2003-10-02 |
US20030118114A1 (en) | 2003-06-26 |
EP1440585A2 (en) | 2004-07-28 |
KR100924907B1 (en) | 2009-11-03 |
JP2005506777A (en) | 2005-03-03 |
US6842124B2 (en) | 2005-01-11 |
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